baber/WOPTO huggingface dataset:
Patent GB-1497704-A (GB)
Title: Chairs
IPC: A47C3/02
Filed: 1975-03-12
Abstract: 1497704 Adjustable chairs; tip up seats; chairs with tables; stacking chairs; chairs in rows; resilient mountings CENTER FOR DESIGN RESEARCH & DEVELOPMENT N.V. 12 March 1975 [29 July 1974] 10333/75 Headings A4B, A4H, A4J and A4U A chair comprises a forwardly slidable seat 28 and a backrest 29 mounted for limited pivoting movement independently of the seat. A pair of springs 62, 64 urge the seat to its rearmost position and are disposed in grooves 66, 68 in a seat support 22 provided with rollers (58) Fig. 5 (not shown) which contact a curved under surface (54) of the seat. Each side of the backrest is pivotally mounted on a pin 144 secured to the upper end of a back support 24, movement of the backrest being limited by lugs 140, 142 on the backrest engaging arcuate grooves 136, 138 in the upper end of the back support. A spring 156 disposed within one of the grooves biases the backrest towards its upright position. The seat and backrest are each formed from a support plate 46 or 48 on which is snap fitted a plastics cover 47, 49. The back supports may include a horizontal armrest. Alternatively a separate armrest may be attached between the chair legs and a cross brace 20. The armrest may comprise a structural metal member 250 with a plastics material insert 252. In order that the seat may be tipped-up, the seat support 22 is secured to the cross-brace 20 by U-shaped connections 80, 82, the two end positions of the seat being defined by the engagement of a lug 88 on the seat support 22 with the edges 92, 94 of a recess on the brace 20. A number of similar chairs may be releasably connected in a row by the engagement of a recess 210a in a hook secured to one side of each chair with a flange 210b of a second hook secured to the other side of each chair. Alternatively a single leg may be disposed between two seating units joined together by a single pin (214) Fig. 25 (not shown) passing through the leg and the lower ends of the back supports of the two units. In a modification Figs. 28 and 29 (not shown), adjacent chairs are coupled together by a connector comprising two pivotally inter-connected members (234), (234') allowing the chairs to pivot relative to one another. The cross brace 20 may be supported on a central pedestal (224) Figs. 15 and 16 (not shown). Stacking of the chairs with no metal to metal contact is effected by provided plastics inserts 255, 255a at the junctions of the chair legs. A writing table 238 which is provided with an armrest 228' at right angles to the writing surface is pivotally secured to a support arm 226' for movement about two horizontal axes A 1 , A 2  from a first position in which the writing surface depends vertically to a position in which the writing surface is horizontal and in front of the user.
Patent GB-118428-A (GB)
Title: Improvements in or relating to Fastenings for Eyeguards or Shields.
Inventor: RYLAND CHARLES FREDERICK
IPC: A44B9/12
Filed: 1918-01-21
Abstract: 118,428. Ryland, C. F. Jan. 21, 1918. Protectors a n d shields. - Relates to eye guards and shields which are bent round the face when in use and which fold under the peak of or are detached from the headgear when not in use, such as those described in Specification 108,888, and consists in an improved fastening, enabling the shield to be detached for cleaning, and made in the form of a spring clip having one or more slots or loops for adjusting the shield to the face of the wearer, the clips being applied to the brim or peak of the headgear, or to a part secured thereto. Rings or eyelets upon the depending shield are slipped into the loop B of the spring clip A, B, Fig. 2, which is provided with spikes C for attachment to the brim &c. In this position, the shield hangs vertically. The form shown in Fig. 3 is made from a single stamping, and has alternative notches D in which the ring may engage to suspend the shield nearer to the eyes. When the shield is to be folded up out of use, the ring is passed along to the opposite end A of the clip. In a modification, the clip is hinged, and has a spirally twisted member as the equivalent of the notches.
Patent GB-105454-A (GB)
IPC: A24F13/10
Abstract: 105,454. Dunhill, A. June 6, 1916. Cigarettes-holders.-The mouth-piece G of a telescopic holder is tapered at the ends so as to become fixed when pulled out or closed up.
Patent GB-866207-A (GB)
Title: Improvements in or relating to respiratory apparatus
IPC: A61H31/00
Filed: 1956-04-06
Abstract: 866,207. Artificial respiration apparatus. GRIME, L. P. July 8, 1957 [April 6, 1956], No. 10581/56. Class 81(2). An artificial respiration belt is shaped to overlie the abdomen and has crutch straps 34 and one or more inflatable portions 18, 20 arranged to lie against the front and sides of the abdomen. An inflatable, flexible, inextensible belt 10 is connected to an air pump 12. The belt 10 is in two parts which are adjustably laced together and is secured around the abdomen by buckles 16 and straps 14. An inflatable bag is disposed in each part 18, 20 of the belt 10, each bag being connected by a nine 30 to a union 32. The crutch straps 34 are secured by buckles 36. The pump 12 comprises a bellows 38 having a fixed top member 44 and a movable lower member with a projecting rod 48, the bellows 38 being mounted in a frame 40 on a wheeled platform 42. The rod 48 passes through verticallyspaced guides 50, 52 and carries a cam follower 54. The cam follower 54 engages a cam 56 rotated by a worm-wheel 58 which is driven by an electric motor 70 through one of two pulleys 64, 66 and a belt 68. The rod 48 is axially reciprocated as the cam 56 is rotated, to operate the bellows 38. The output speed of the motor 70 may be adjusted to give 12 or 18 respirations per minute dependent on which of the pulleys 64, 66 is connected with the belt 68. A T-piece 72 mounted on the top member 44 of the bellows 38 carries an air inlet valve 80 which opens if the pressure in the bellows falls below a predetermined minimum. The bellows 38 is connected to the belt 10 by a pipe 78 which connects the T-piece 72 with pipes 77 fitted on the unions 32. A valve 73 may be connected to a hand-operated pump to raise the bellows pressure to above atmospheric.
Patent GB-660408-A (GB)
Title: Improvements in or relating to cyanine dyes
Inventor: KENDALL JOHN DAVID
IPC: C09B23/04
Filed: 1949-04-21
Abstract: Meso-substituted cyanine dyes are prepared by reacting an alkyl or aralkyl quaternary salt of a benzthiazole containing a thioether grouping in the 2-position with an alkyl or aralkyl quaternary salt of a benzthiazole containing an alkyl-or aralkyl-substituted methyl group in the 2-position, in the presence of a strong base, which is substantially stronger than pyridine and should be at least as strong as triethylamine. Sodium ethoxide may be used.  3 : 31 : 8-Trimethylcyanine iodide is prepared by boiling together in alcohol 2-ethylbenzthiazole methiodide, 2-methylthiobenzthiazole methiodide, and sodium ethoxide or triethylamine.  3 : 31 - Diethyl - 8 - methylthiacyanine iodide is similarly prepared. Specification 424,559 is referred to.
Patent GB-1063806-A (GB)
Title: Binary code read-out device
IPC: H03K5/01
Filed: 1964-03-13
Abstract: 1,063,806. Transistor oscillator circuits. EASTMAN KODAK CO. March 13, 1964 [March 18, 1963], No. 10641/64. Heading G4A. [Also in Division H3] A read-out device for sensing binary information carried on a support, such as for example a micro-film, includes a polarity corrector which enables information carried in opposite polarity, as by positive and negative films, to be brought to the same polarity. The corrector comprises a transistor having an output impedance (19) in its emitter-collector circuit and a reversable emitter-collector supply (A, B). The transistor operates in common-emitter or emitter-follower configuration according to the polarity of the supply and the signal is passed with or without polarity inversion. Correctors may be connected in each of a number of parallel channels and the supply potential reversed by a common switch (Fig. 3, not shown).
Patent GB-962890-A (GB)
Title: Abrasive wheel and method of making the same
IPC: B24D13/04
Filed: 1963-03-18
Abstract: 962,890. Abrading. CARBORUNDUM CO. March 18, 1963 [April 18, 1962], No. 10661/63. Heading B3D. A replaceable abrasive wheel unit comprises an annulus 18 of abrasive coated leaves 20 bonded at their inner ends to a collar 22 of substantial thickness of hardened adhesive resin conforming at its inner periphery to a sleeve 4 of a hub section 2 on which the wheel unit is adapted to be mounted, and a circular groove 28 formed in each lateral face of the annulus and adapted to receive a circular rib 8, 16 formed on a radially-extending flange of a hub section. The hub for the units has a female section 2 having a flange 6 and a sleeve 4 and a male section 10 having a flange 14 and a part 12 received in the sleeve 4. Both flanges are formed with circularly-extending ribs 8, 16 engaged by the grooves of the unit. The unit may be made by assembling a number of abrasive coated leaves between the sections which have previously been coated with grease on the surfaces which contact the leaves, a gel or thixotropic coating of resin being applied to the inner edges of the annulus of leaves, before the sections are secured together, by bolts 36, to prevent impregnation of the abrasive coated leaves to any appreciable extent when the resin is poured into the space between the sections and the leaves through openings 30. After hardening of the resin, the annulus may be removed for further hardening by heating, if required. The resin is preferably a urethane resin or a combination of a urethane resin and an epoxy resin.
Patent GB-415522-A (GB)
Title: Improvements relating to liquid-immersed electric circuit interrupters
IPC: H01H33/84
Filed: 1933-04-10
Abstract: 415,522. Oil - break switches. JUHLIN, G. A., Redscar, Moss Lane, Timperley, COATES, W. A., Walford Lodge, Dunham Road, Bowdon, both in Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. April 10, 1933, No 10727. [Class 38 (v).] In an oil-break switch of the explosion pot type, the fixed contact 15 is provided with a hollow lead-in conductor 1, through which liquid under pressure is injected into the explosion pot 7 during the opening of the circuits. In the arrangement shown, the lead-in conductor is surrounded by a condenser bushing 2 enclosed in a casing 5 to which oil under pressure is admitted through a pipe 17 under the control of a valve which opens when the switch opens. The oil passes through a hole 18 into the lower part of the hollow conductor 1 and thence into the explosion pot 7.
Patent GB-610484-A (GB)
Title: Improvements in or relating to thermostatic devices for controlling the temperature in electrically heated ovens and the like
IPC: G05D23/275
Filed: 1946-04-08
Abstract: 610,484. Thermal switches. BRITISH THERMOSTAT CO., Ltd., and SHERLOCK, J. E. April 8, 1946, No. 10769. [Class 38 (v)] A thermal switch for an oven comprises a phial and capillary tube 6 connected to a capsule or, as shown, a bellows 5 which is fixed at the upper end to a slidable, twopart housing 4, the other end being secured to a disc 8 and adapted, through a rod 11, to actuate the contacts 14 against the bias of a spring 9 when the bellows are contracted by temperature-increase. The position of the housing 4 is adjustable against the action of a spring 31 to vary the operating temperature, by means of a cam 19 which engages a lever 16 pivoted at 18 and bearing on a flange 17 of the housing 4. The cam is secured to a spindle 20 rotatable by a knob 3. A metallic sleeve 22 is axially adjustable to vary the leverage of the cam on the lever 16 and, hence, the temperature range, and also serves as the core of an electromagnet 24, which normally retains an armature 25 secured to an indicator button 27 in the position shown, against the action of a spring 28. The coil 24 is in the circuit of contacts 14 and is thus de-energized to release the button when the contacts are opened, the button requiring depression to reset it. The spring 9 may be precompressed by rotating the lower half of housing 4. A modified indicator, Fig. 5, comprises a magnetic finger 33 mounted on a spring 34 and normally held in the position shown by the coil 24. On release, its tip 36 protrudes beyond the knob 3.
Patent GB-352071-A (GB)
Title: Improvements in permutation locking devices for motor vehicles
IPC: E05B37/02
Filed: 1930-04-04
Abstract: 352,071. Permutation locks. O'SHEA, D. L., 8, Rathdown Street, East Brunswick, Victoria, Australia. April 4, 1930, No. 10780. [Class 44.] Permutation locks of the kind described in Specification 321,747, [Class 44, Fastenings, Lock &c.], have picking-preventing means consisting of recesses on the side faces of the permutation wheels 10 engaged by the pins 13 on the Jock spindle 7. The recesses consist of shallow gaps a, Fig. 2, formed in the face of the wheel, or by spaces e, Fig. 6, between projections d formed on the side face or on an annular rib f. In a modification, Fig. 5, slots c are formed in discs b forced into or secured within the wheels.
Patent GB-805891-A (GB)
Title: Process and apparatus for producing photographic colour prints
IPC: G03B27/73
Filed: 1955-04-14
Abstract: 805,891. Photo-electric exposure control. AGFA CAMERA-WERK A.G. April 14, 1955 [April 21, 1954], No. 10833/55. Class 40 (3). [Also in Group XX] In apparatus for producing a photographic colour print from a colour transparency three exposures are made simultaneously or sequentially with three primary colours, the quantity of each colour impinging on the lightsensitive material being measured photo - electrically to interrupt the supply of light of that particular colour. As shown (Fig. 1), three colours, blue, green and red, are separated by filters 5, 6 and 7 from white light produced by sources 2, 3 and 4. The three colours are reflected on to an opal or ground glass screen 9 located in the focal plane of a condenser 10 and directed through negative 12 on to the sensitive surface 15. A half-silvered mirror 14 between the negative and the sensitive surface diverts part of the light which has traversed the negative to further half-silvered mirrors 19 and 23. Mirrors 19 and 23 divide the light reflected by mirror 14 into the three equal parts, one of which falls on each of cells 16, 17, 18 sensitized respectively to the three primary colours by filters 20, 24, 25. Each cell controls the charging of a condenser which, through a pentode amplifying circuit, switches off the appropriate lamp when the quantity of the particular colour is adequate. If the exposure of each colour is to differ the condenser charging potentials may differ. In the arrangement of Fig. 2 (not shown) a rotating disc has mounted in it three filters which are successively interposed in a beam of light from a lamp, a photo-cell responds to the light which has traversed the negative and rotates the filter to terminate the exposure of a particular colour and commence that of the next.
Patent GB-735253-A (GB)
Title: Novel amino acids containing secondary amine and amide groups and production thereof
IPC: C07C237/00
Filed: 1953-04-20
Abstract: The invention comprises amino acids containing secondary amine and amide groups of the general formula <FORM:0735253/IV (b)/1> where R represents a hydrogen atom or a methyl group, which may be prepared from cyclic compounds of general formula <FORM:0735253/IV (b)/2> by heating in aqueous alkaline solution, preferably in the pH range of 8-12.  The cyclic compound is dissolved, for example, in a dilute aqueous solution of ammonia, heated under reflux and the syrupy reaction product is purified.  The cyclic intermediates are obtained in addition to polycondensation products of linear structure when partially aminated methylene-bis-chloropropionamides of structure <FORM:0735253/IV (b)/3> are subjected to quantitiative splitting off of HCl by treatment in vacuo at a pressure of 0.5 mm/Hg and a temperature of 115 DEG  C. in a stream of nitrogen, as described in Specification 734,287. In examples (1) the cyclic compound where R = H is refluxed in 10 per cent ammonia solution and the syrupy mass which results on cooling is purified with acetone or ethanol; (2) the cyclic compound in which R is methyl is similarly treated to produce the corresponding amino acid.  The novel amino acids are suitable as intermediates for the production of moulded bodies and films, as textile auxiliary agents and as plasticizers.
Patent GB-1417233-A (GB)
Title: Two-way pressure relief assembly
IPC: F16K17/18
Filed: 1973-03-06
Abstract: 1417233 Ventilators AMERICAN AIR FILTER CO Inc 6 March 1973 [6 March 1972] 10852/73 Heading F4V [Also in Division F2] A pressure relief assembly, e.g. for heating or air conditioning systems, comprises two valves allowing pressure relief in opposite directions. The assembly comprises a housing 12 communicating with the interior of a plenum 10 through opening 11 and provided with upper and lower sets of valve ports 20, each set being closed or opened by a respective hinged plate 15. When an explosion or abnormally high pressure occurs within the plenum or rooms connected therewith, the upper valve plate 15 opens. If a explosion occurs outside the plenum, e.g. in a furnace room containing the plenum, then the lower plate 15 opens. The valve plates are of a given weight to provide pressure relief at predetermined pressures. Moreover, the plates may have weights attached to their upper sides or be spring loaded. The plates are provided with rings 18 which co-operate with resilient seals 16<SP>1</SP> when the plates are closed. Stops 21 for the valve plates include strips 22 of resilient material, e.g. cork or heat resistant vinyl rubber.
Patent GB-1551718-A (GB)
Title: Processes for detecting periodic deviations of textile thread sensing signals
IPC: G01B21/30
Filed: 1978-03-20
Abstract: The method is used for determining periodic fluctuations of the transverse dimension of a running yarn, particularly on open-end spinning machines for detecting the moiré effect. The electrical scanning signal (F') is transformed into a sequence of needle pulses (S'); this pulse sequence (S') is compared with a reference pulse sequence (Z') of a particular preselected period (p). The mutual phase relationship of the pulse sequences (S' and Z') is changed in small steps, the number of coincidences of pulses within a number of such steps assuming either a maximum or not indicating any pronounced maximum. Two criteria for determining a maximum are specified. The first criterion is met when the number for T exceeds a particular minimum value; the second criterion applies when the sum of such excessive T values in successive test steps is greater than a further minimum value. <IMAGE>
Patent GB-819025-A (GB)
Title: A method of producing fresh water from brackish water
Inventor: CHRISTIANSEN ANKER
IPC: C02F1/16
Filed: 1957-04-03
Abstract: <PICT:0819025/III/1> In a method for obtaining fresh water from sea water or other raw water by passing it through an evaporator 7 under reduced pressure wherein water is evaporated at a temperature not exceeding 48 DEG  C., and condensing the vapours in condenser 29, the formation of scale in the evaporator is obviated by using an hourly supply rate of raw water to the evaporator equalling 10 to 20 times the water-containing volume of the evaporator while maintaining a salt concentration in the water in the evaporator not exceeding twice the original salt concentration in the raw water.  The heating is effected in a large number, e.g. 500 to 800, narrow vertical tubes 15, and the evaporator is also provided with a wide centre tube 14, the dimensions being such that the amount of water in the narrow tubes constitutes at least one third, preferably 48 to 60 per cent, of the total quantity of water in the evaporator. Tube 14 may have a diameter of 200 to 300 mm., while the diameter of tubes 15 may be 16.5 mm.  Tubes at may be heated by circulating the water from the cooling jacket of a marine diesel engine around them, this water being introduced at a temperature of about 65 DEG  through line 9, and removed through line 12.  Reduced pressure is maintained in the plant by means of pump 49 which is connected to the condenser by line 47.  Sea water is circulated through the cooling-tubes 30 of the condenser via lines 31 and 33, a valve 34a being inserted between line 33 and the feed-line 1 to the evaporator.  The preheated sea water is fed into the evaporator through lines 1 and 6, and the concentrated water is withdrawn through lines 16 and 19.  A constant water-level is maintained in the evaporator by float-valve 2.  Line 19 is connected to conductivity meter 61 and relay 62.  The concentration of the effluent water is controlled by meter 61 which, when it records a predetermined concentration, releases an alarm (not shown), or reduces the flow of hot water in line 9 by means of valve 63, or increases the flow of sea water through the evaporator by means of valve 64.  The vapours, formed in the evaporator, flow into cyclone 27, and then down tube 28 into the condenser.  Distilled water is withdrawn from the condenser via line 36 and pump 38.
Patent GB-1355452-A (GB)
Title: Process for preparing copolymers
IPC: C08G67/02
Filed: 1972-03-09
Abstract: 1355452 Copolymers MONTECATINI EDISON SpA 9 March 1972 [12 March 1971] 11127/72 Heading C3P Copolymers containing vinyl chloride and acrylic ester units are obtained by polymerizing vinyl chloride with carbon monoxide in the presence of an alcohol, or reacting a vinyl chloride-carbon monoxide polymer with an alcohol. In examples, vinyl chloride and carbon monoxide are polymerized in n-pentane using t.butyl monoperoxalate as initiator or without diluent using benzoyl peroxide followed by reaction with methyl alcohol, or copolymerization is effected in the presence of methyl alcohol, 2 - ethylhexyl alcohol, beta - phenylethyl alcohol, ethylene glycol, 3-hydroxypropionic acid, with or without n-pentane or n-heptane diluent using the above initiators or triethylboron/oxygen.
Patent GB-699397-A (GB)
Title: Improvements in or relating to convertible sound pick-up devices
IPC: G11B3/46
Filed: 1952-05-02
Abstract: 699,397. Gramophone pick-ups. ELECTROACUSTIC GES. May 2, 1952 [May 2, 1951], No. 11141/52. Class 40 (ii) A gramophone pick-up unit is fitted with two styli and is supported in a housing by two bearings, one of which is fixed in the housing while the other is provided in a movable element of a switch device, the operation of which causes the pick-up unit to pivot about the fixed bearing. The pick-up unit 2 (Fig. 1), having two styli 4, 5, is supported in the housing 1 of the tone arm by a blade 6 engaging a bearing 7 of a bearing spring 8, and by a bearing spring 9 suspended on the bearing lug 11 of a switch segment 10, which pivots about pin 12. Clockwise movement of switch 10 about pin 12 from the position shown in Fig. 1 brings stylus 5 into the playing position in place of stylus 4. Two bearing springs 8 and blades 6 may be used to act as pick-up leads. An indication of which stylus is in the operative position is given by markings on the visible exterior surface of the switch 10. A sliding surface 15 may also be provided to guide supporting blade 6 on to the bearing 7 during the insertion of the pick-up unit.